2018 Hitachi Construction Machinery Haul Trucks EH4000AC-3

2018 Hitachi Construction Machinery Haul Trucks EH4000AC-3

The EH4000AC-3 combines our time-proven truck technology with our newest and most efficient Advanced IGBT AC-Drive system. Unlike all other competitors, the entire AC-drive system is designed, built and supported by the same company – Hitachi. As a result, it outperforms previous and competitive systems through its simplicity, improved efficiency, and enhanced dependability.

The EH4000AC-3 is one of the most technologically advanced mining trucks in the world, delivering more efficiency, reliability and durability.

Features may include:

• The enhanced Slip/Slide Control System is an active traction control and anti-lock brake system in slippery conditions.

• The pitch control feature of the Advanced AC-Drive System reduces bouncing/ rebounding on the truck as it hits bumps or uneven ground on the haul road.

• The side skid control feature helps the operator in slippery road conditions when making turns.

• The Hitachi Double Path Tandem Planetary Design provides high efficiency. Better component and lubricant life is the result of holding the first carrier stationary and constantly cycling the lubricant through a cooler and filter.

• The new-generation Hitachi IGBT system outperforms previous and competitive systems through its simplicity, improved efficiency, and enhanced dependability. It couples the best GTO features with higher torque, faster acceleration, smoother retardation and lower operating costs.

• Superior electric braking enables the driver to stop the truck using the electric brake pedal only with the exception of emergencies.

• IGBT modules (inverter and chopper) are liquid cooled. Grid resistors, alternator and traction motors are forced-air cooled. The final drive gear oil is circulated, air-cooled and filtered before being directed back to the final drive.

• The EH4000AC-3 is equipped with a Cummins QSKTA60-CE diesel engine that generates 1864 kW (2,500 hp) at 1,900 rpms and meets Tier 2 EPA emission requirements.

• The cab frame provides improved safety and durability and features a three-point isolation-mount design to allow additional independent motion from the truck frame.

• The frame on the EH4000AC-3 has been redesigned and improved for longer life. The bolt-on high-arch cross member, combined with new rear axle housing and nose cone designs, give the EH4000AC-3 the sturdiest frame of all.

• The updated body is stiffer and tougher with a 6 percent steeper floor pitch to reduce spillage and provide solid, well-cushioned body-to-frame support.

• The new frame has fully fabricated box-section rails with section height tapered from rear to front. The one-piece top and bottom flanges eliminate cross member tie-in joints. The large radii at frame junctions minimize stress, and all welds are longitudinal to reduce stress cracks and deliver more strength and durability.